Your home equity is your money and you can do with it as you see fit. Generally, we want to ensure our money yields a return. With a real estate asset, that return is either,
1) rent received - Example: you rent your home and get $300/month after expenses, taxes, insurance, mortgage interest, vacancies and repairs. That means your $155k of assets is getting you a return for keeping the house of $3600/year or 2.3%
2) the opportunity cost of other living accommodations - Example 1: if renting a similar house would cost you $1500/month but currently living in your house costs you $800 per month in mortgage interest, taxes and homeowners insurance, then your equity is giving you a return for keeping the house of $700/month or 5.4%
Example 2: You say "screw houses and apartments, we want to go RVing!!!" Then your living expenses are probably closer to $500/month for campground fees (plus $20k in capital for the RV) so your return on keeping the house is -$300/month (remember you pay $800/month on keeping the house) or -$3600/$135k (you had to buy the RV with your money) or -2.67%
So, the answer depends on what you plan to do and what you could use the money for instead. (Note that I should have subtracted my expected returns in stocks (or whatever) from the return values above because if your money isn't in your house, it should be invested elsewhere.